Ingrain carpet fabric.



m m 9, 2 .L c U d a.v .t n e .t a P nu. R .n K mw WE Dm. nn AAA Hc .N RG N L 0 5 3 6 0. N

(Application filed Apr, 20, 1897.)

(No Model.)

uw@ o.

mw I f.on. olnlo% Wltnesses.

Attorney.;

FFIC.

ATENT HARRY HARDWICK, OE PHILADELPHIA, PENNSYLVANIA.

INGRAIN YCARPET FABRIC.

SPECIFICATION forming part of Letters Patent No. 685,602, dated October29, 1901. Applcationled April 20, 1897. Serial No.l 632,951- (Nospecimens.)

To all whom it may concern:

Be it known that I, HARRY HARDWIOK, a citizen of the United States,residing at Philadelphia, county of Philadelphia, and State ofPennsylvania, have invented a new and useful Improvement in IngrainCarpet Fabrics, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawing, whichforms a part of this specification.

My' invention has for its object the production of a novel two-plyfabric which will enable the production of many pleasing effects and bya novel use of warp will prevent the weft of one face or ply comminglingwith the weft of the other face or ply.

My invention belongs to that class of fabrics in which the wefts on oneface are bound to the wefts on the other face throughout the fabric byhaving warps which bind the wefts of two faces in one shed. With thischaracter of fabric, which, broadly considered, is old, there is atendency for the wefts of one `face to grin through to the otherface,spoiling the surface of the fabric. Several methods have been attemptedin order to obviate this difficulty. VThe most generally adopted form isto use a stuer-warp lying between the two plies,- which prevents thewefts of the two plies commingling. This construction has manydisadvantages, among which may be mentioned that the stuifer-warp lyingbetween the two plies of the fabric forms a bulky mass and isdetrimental to the fabric in many cases.

I accomplish the result in my fabric,I speaking generally, in thefollowing manner: I have two sets of binder-warps, one set being heavierthan the other set. This heavier set I-place in one ply of the fabric,using the lighter warps to bind the other ply of the fabric and to passfrom ply to ply to bind the two plies together. With such a constructionas this whether the heavier warps be upon the face or the back of thefabric they prevent the commingling of the'wefts of the two plies.

The drawing represents a section upon the warp of a fabric embodying myinvention.

In the drawing W', R2, O3, and B4 represent the four wefts, in which thenumerals represent the order of throw and the letters desig nate thecolorswthus, W, white; O, olive g R,

red, and B black. The light warps are denoted as a b and the heavy warpsas c cl.

I have divided the drawing into twenty-four sections (denoted 5 to 28)between the dotted lines. These sections are in pairs, 5 and 6 showingthe same, 7 and 8 the same, and so on. The sections 17 to 28 are reverseeffects from those shown in sections 5 to 16.

The specific description `of each pair of sections of this fabric is asfollows: In sections 5 and 6 the olive and white weft-threads are in oneply, the top, andthe black and red weftthreads in the other ply, thebottom. The light warp-thread a passes alternately over and under thewefts in the upper ply, while the light warp b passes over alternateweft-threads in the upper ply and under alternate weftthreads in thelower ply. The heavy warpthreads c and d pass alternately over and underthe weft-threads of the lower ply. In seci tions 7 and 8 the arrangementof warp-threads with reference to the weft-threads is the Same as insections 5 and 6, and in this section the black and red weft-threads arein the upper ply,while`the olive and white threads are in the lower ply.In sections 9 and 10 the arrangement of warp-threads with reference tothe weft-threads of the two plies is the same. The weft-threads of thetwo plies are dierent from the preceding sections, being different inthat the red and white weft-threads appear in the upper plyand the blackand olive weft-threads appear in the lower ply. In sections 11 and l2the black and white weft threads are in the upper ply and the olive andred weft-threads are in the lower ply. Like the other sections spokenof, one warp-thread remains at all times in the upper ply, while theother warp-thread passes alternately from one ply tothe other; butdiffering from the preceding sections the warp-thread b remains in theupper face or ply, While the warp-thread a alternately passes from plyto ply. The heavy warp-threads, as in the preceding sec'- tions, passalternately over and under the weft-threads of the lower ply. Insections 13 and 14 the arrangement of warp is the same as that in thepreceding sections 11 and 12, the only difference being that theweft-threads olive and red are in the upper ply and the weft-threadsblack and white in the lower ply. Likewise in sections 15 and 16 the arfrangement of the warp is` similar to that in sections 11 and 12, thediierence being in the arrangement of the weft. In these sections 15 and16 the Wefts black and olive are in the top ply and the wefts red andWhite in the lower ply. Sections 17 to 28, so far as the weft isconcerned, are identical with the corresponding Sections 5 to 16, thedifference between the two sets of sections being only in the fact thatthe heavy warps lie in the upper ply, while the light warps bear thesame relation to the lower and upper plies that they did in sections 5to 16 with reference to the upper and lower plies.

Throughout the construction of this fabric the heavy Warps are in oneply and the light warps in the other ply, and at intervals the lightwarps pass from one ply to the other, binding the two plies together.

The fabric of'my invention, as may be seen from the foregoingdescrption,is formed practically by weft and binding or light Warp, inwhich upon one face or ply the heavy Warp surrounds the weft andprevents it from commingling with the weft of the other ply.

Having now fully` described. myinvention, what I claim, and desire toprotect by Letters Patent, is" V I y In a two-ply ingrain carpet havingwefts in sets of four and warps in sets of four, two be? ing heavy warpsand two light Warps, and in which the heavy warps lie in one ply andsurround the weft in that ply, and the light Warps pass from ply to plyto bind the plies together.

In testimony of which invention I have hereunto set my hand.

HARRY HARDWICK.

Vitnesses:

CAROL H. DnsHoNG, M. F. ELLIS.

